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Maintenance & Quality

How Japanese plants run maintenance, safety, and quality routines.

46 guidesShowing 1–12

Maintenance & QualityOptical Pyrometer: Disappearing Filament & Emissivity ErrorLearn how a disappearing-filament optical pyrometer works, how it compares with infrared and two-color types, and why emissivity and windows skew readings.Oct 24, 2026Maintenance & QualityQuartz Thermometer: Resolution vs Accuracy, Bath CalibrationLearn how a quartz thermometer works, why 0.0001 °C resolution is not accuracy, how to read a JCSS certificate, and how to run a bath comparison.Oct 24, 2026Maintenance & QualityFeedwater Heaters: LP vs HP, Extraction Steam, TTD and DCALearn LP vs HP feedwater heaters, how to calculate extraction steam flow, and how TTD and DCA changes point to fouling, level, or venting problems.Oct 23, 2026Maintenance & QualityElectro-Pneumatic vs. Pneumatic Positioners: How They WorkHow valve positioners use position feedback, how E/P and pneumatic types differ from an I/P converter, and how to read Japanese model codes.Oct 22, 2026Maintenance & QualityHow to Measure Current with a Multimeter (Japanese Testers)Why current is measured in series, how to read Japanese tester labels, A vs mA jacks, clamp meters, fuses, and CAT II/III ratings under IEC 61010.Oct 22, 2026Maintenance & QualityCpk 1.33 Explained: Cp vs Cpk, Sample Size, Japanese SpecsLearn the Cp and Cpk formulas, what Cpk 1.33 and 1.67 mean, where the criteria come from (JIS, AIAG PPAP), Cpk vs Ppk, and how many samples you need.Oct 22, 2026Maintenance & Quality7 QC Tools in Japanese Quality Reports: How to Read ThemLearn the 7 QC tools as Japanese plants use them: chart names like tokusei yoin zu, the QC story order, Cp/Cpk, and a checklist for supplier reports.Oct 22, 2026Maintenance & QualityAIAG-VDA FMEA for Japanese Customers: DFMEA vs PFMEALearn the AIAG-VDA FMEA 7 steps, DFMEA vs PFMEA, and Action Priority vs RPN, plus what Japanese customers check, with a PFMEA example and checklist.Oct 22, 2026Maintenance & QualityPredictive Maintenance ROI: How Japanese Plants Justify ItCalculate predictive maintenance ROI from downtime cost, repair savings, and running costs, with fictional payback examples and a one-page ringi summary.Oct 22, 2026Maintenance & QualityCavitation vs Air Entrainment in Pumps: Telling Them ApartLearn how to tell pump cavitation from air entrainment (ea-gami): where bubbles form, symptoms, NPSHA vs NPSHR with a worked example, and a checklist.Oct 22, 2026Maintenance & QualityDirect vs Reverse Acting Control Valves: NO/NC, FO/FC/FLDirect vs reverse acting control valves explained: air to open/close, NO/NC, FO/FC/FL fail positions, and Japanese spec terms with English equivalents.Oct 22, 2026Maintenance & QualityTBM vs CBM: Time-Based vs Condition-Based MaintenanceCompare TBM, CBM, and breakdown maintenance, learn why fixed intervals miss most failures, and use a 4-question decision order and checklist for your plant.Oct 22, 2026